Finding the Fourth Proportional to 8,171,640.73, 11,276,029.68 and 5,031,405.73
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Solution
The fourth proportional to 8,171,640.73, 11,276,029.68 and 5,031,405.73 is: 6,942,826.08
Step by Step Solution
- Step 1: Write the proportion equation
8,171,640.73 : 11,276,029.68 = 5,031,405.73 : x - Step 2: Convert to fraction form
8,171,640.73/11,276,029.68 = 5,031,405.73/x - Step 3: Cross multiply
8,171,640.73x = 11,276,029.68 × 5,031,405.73 - Step 4: Simplify right side
8,171,640.73x = 56,734,280,343,602.07 - Step 5: Solve for x
x = 56,734,280,343,602.07/8,171,640.73 - Step 6: Final answer
x = 6,942,826.08
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.